Method and machine for drying, cleaning, and polishing moving-picture films



J. W. GUNBY.

METHOD AND MACHINE FOR DRYING, CLEANING, AND POLISHING MOVING PICTUREFILMS.

' APPLICATION FILED JUNE 12, I920.

1 ,401,771 Patented Dec. 27, 1921.

2 SHEETS-SHEET I.

METHOD AND MACHINE FOR 1. w. GUNBY.

APPLICIU'WN FILED JUNE 12; I920.

1,401,771. Patented Dec. 27, 1921.

2 SHEETS-SHEET 2.

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JAMES w. ennev, or nrnenrrnnnrean, new inasnv.

ranrnonnnn MACHINE roe. DRYING,

- Application filed June 12, 1920. Serial No. 388,673.

To aZZ wit-om it may concern Be it known that I, JAMns W. GUNBY, acitizen of the United States, residing at Ridgefield Park, in the countyof Bergen and State of New Jersey, have invented new and usefulImprovements in Methods and Machines for Drying, Cleaning, and PolishingMovingPicture Films, of which the following is a specification.

My invention relates to a new and useful improvement in method andmachine for drying, cleaning and polishing moving picture films, and hasfor its object to so manipulate a film of this description as to dry,clean and polish the surface thereof after being wound upon a drum andwhile revolving the drum.

A further object of my invention is to so provide a drum with a coveringas to take up the moisture from the film when wound thereon and gentlychafe or rub the surface of the film during the revolutions ofsaid drum.

A still further object of my invention is to provide means for securingthe cover upon the drum whereby said cover may be set upon the drum orremoved therefrom for cleansing and replacement.

With these ends in view, this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenspecifically designated by the claims.

In order that those skilled in the art to which this inventionappertains, may understand how to make and use the same, I will describeits construction indetail, referring by numerals to the accompanyingdrawings forming a part of this application, in which Figure 1, is anend view of a drum adapted for carrying out my improved process.

Fig. 2, is an elevation of Fig. 1, and showing the covering thereonpartially broken away and also showing a strip of film wound upon thecover.

Fig. 3, is a plan view of the drum showing the arrangement for securingthe covering thereon.

In carrying out my invention as here embodied, 1 represents a drum orholder which may be of any desired construction here shown as consistingof the end rims 2 to which the spokes 3 are secured, said spokes beingalso secured to the hubs 4. These hubs have a shaft 5 passedtheretlirough, the ends of which shaft are journaled in the bearings 6carried by the upper ends of the frames '7 which are intended to besecured to the floor by the foot pieces 8. g One or more rims 9 maybelocate'd'intermediate of the end rims 2 and ribs 10are CLEANING, AnnPOLISHI G MOVING-PICTURE 1 :"ILMs. V r

v Specification of Letters Patent. Pat gated Dec, 27, 1921,

secured to these rims so spaced as to give able moisture absorbingfabric for hastening the drying of the film and polishing the surface ofsaid film. The meeting ends of this covering are provided with a seriesof eyelet holes 12 through which the lacing 13 is passed for drawing theends of the covering together thereby securing the latter upon the drum.In rder that the-lacing may not mar or interfere with the film beingwound upon the drum, I provide a flap 1 4 which is secured to one end ofthe covering just back of the eyelet holes, and this'flap isturned overthe lacing in a direction reverse to the travel of the drum when thefilm is being. wound thereon s that the motion of the drum will causethe flap to retain its position over the lacing. A suflicient amount ofthe circumference of the drum is left exposed of these lengths of films,and after the films have been thus applied to the drum the latter is setin motion and the centrifugal force thus developed with the inducedcurrents of air will cause the coverings to pulsate or have anundulating movement which will create a gentle chafing or rubbingagainst the face of the film lying next there to and by so doing cleanand polish said film while it is drying. Another element entering intothe action is the weight of the film which will' cause that portionthereof in the lowermost position to separate'from the drum and thenagain contact therewith as the film is carried upward. When this processhas been carried to a suflicient degree the film lengths are removedfrom the drum when they are ready for use without further manipulati0n.V The use of my process eliminates the necessity of hand or machinepolishing and .1 much superior surface is produced upon the film thanhas heretofore been the case, while at the same time effectingconsiderable saving in time and labor Oi": course 3. do not Wish to belimited to the exact details of construction as herein shown as thesemay be varied within the limits of the appended claims without departingfrom the spirit of my invention.

Having thus fully described my invention, what I claim as new and usefulis i 1. The method of drying, cleaning and polishing moving picturefilms consisting of Winding said films upon a drum having an absorbentcovering and then revolving said drum in such manner as to cause theabsorbent covering to rub the surface of the lilrn lying there against.

.2. The method of drying, cleaning and polishing moving picture filmsconsisting of placing said films upon an absorbent material and thenundulating said material.

3. The method of drying, cleaning and polishing moving picture filmsconsisting of winding said films upon an absorbent material in circularform and revolving the same to give an undulating movement JAMES w.GUNBY.

